Journal of Industrial and Engineering Chemistry

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
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Preparation of poly(vinyl alcohol)/poly(acrylic acid)/$TiO_2$/carbon nanotube composite nanofibers and their photobleaching properties

  • Jeon, Sonyeo (Department of Fine Chemical Engineering and Applied Chemistry, BK21-E2M, Chungnam National University) ;
  • Yun, Jumi (Department of Fine Chemical Engineering and Applied Chemistry, BK21-E2M, Chungnam National University) ;
  • Lee, Young-Seak (Department of Fine Chemical Engineering and Applied Chemistry, BK21-E2M, Chungnam National University) ;
  • Kim, Hyung-Il (Department of Fine Chemical Engineering and Applied Chemistry, BK21-E2M, Chungnam National University)
  • Published : 2012.01.25
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Abstract

The composite nanofibers of poly(vinyl alcohol) (PVA)/poly(acrylic acid) (PAAc)/titanium(IV) oxide ($TiO_2$) were prepared by electrospinning for a novel photocatalytic treatment of waste water. To improve the photoelectronic properties of PVA/PAAc/$TiO_2$ composite nanofibers, carbon nanotubes (CNTs) were used as an additive. The $TiO_2$ and CNTs were immobilized in the PVA/PAAc hydrogels as electrospun nanofibers for an easier recovery after the wastewater treatment. The improved efficiency of pollutant dye removal was observed at pH 10 due to the pH-sensitive swelling behavior of the PVA/PAAc/$TiO_2$/ CNTs composite nanofibers. The photocatalytic activity of $TiO_2$ was improved noticeably by applying electric field to the CNTs-embedded composite nanofibers.

Keywords

References

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